CHICAGO — The Chicago White Sox have announced their player development staff and assignments for the 2025 season under Paul Janish, director of player development. Janish enters his second year overseeing the organization’s minor-league operations and player development system.
In Janish’s first season in the organization, Class AA Birmingham and Class A Kannapolis qualified for the playoffs, marking the first time since 2012 that two White Sox affiliates reached the postseason. Birmingham went on to win the 2024 Southern League Championship.
Sergio Santos (Class AAA Charlotte), Guillermo Quiroz (Birmingham), Patrick Leyland (Class A Winston-Salem), Chad Pinder (Kannapolis) and Daniel González (Arizona Complex League White Sox) will serve as the organization’s managers in 2025.
Santos returns for his second season as a manager in the White Sox organization and first at Charlotte after winning the 2024 SL Championship with Birmingham. Quiroz enters his first season at the helm of the Barons after managing Winston-Salem in 2023–24. Leyland, who led Kannapolis to the 2024 Carolina League Championship Series, begins his first season with the Dash. Pinder enters his first season as a minor-league manager after playing 13 seasons of professional baseball from 2011–23, including seven (2016–22) with the Oakland Athletics. González returns for his third straight season as manager of the ACL White Sox.
Coordinators returning include Ryan Newman (field/infield), Matt Zaleski (pitching), Curt Hasler (assistant pitching), Alan Zinter (hitting), Danny Santin (assistant hitting) and Julio Mosquera (catching).
Mike Gellinger and Doug Sisson, who were on the Sox major-league coaching staff for the last two months of the 2024 season, have returned to the player development system. Gellinger will serve as the bench coach with the ACL White Sox, while Sisson will serve as a special assistant to the senior vice president/general manager.
Phil Nevin begins his first season as part of the White Sox player development staff, serving as a special assistant. Nevin was the Los Angeles Angels manager from 2022–23 and played in 12 major-league seasons from 1995–2006. Scott Aldred joins the Sox organization as the new Charlotte pitching coach. Aldred pitched in nine seasons in the majors with Detroit (1990–92, ‘96), Colorado (1993), Montreal (1993), Minnesota (1996–97), Tampa Bay (1998–99) and Philadelphia (1999–2000).
According to MLB.com, the White Sox currently have six of the Top 60 prospects in baseball: left-handed pitcher Noah Schultz (№16), catcher Kyle Teel (№25), left-hander Hagen Smith (№30), shortstop Colson Montgomery (№37), outfielder Braden Montgomery (№54) and catcher Edgar Quero (№59).
Following are the White Sox full player development assignments for 2025:
PLAYER DEVELOPMENT STAFF
- Director of Player Development: Paul Janish
- Director of Minor League Administration: Kathy Potoski
- Senior Advisor to Pitching: Brian Bannister
- Director of Hitting: Ryan Fuller
- Assistant Director of Pitching: Rod Larson
- Assistant International Director/Player Development Latin America Operations: Louis Silverio
- Manager of Player Development/International Operations: Grant Flick
- Manager of International Player Development/Education: Erin Santana
- Special Assistant to Player Development: Phil Nevin
- Special Assistant to the Senior Vice President/General Manager: Doug Sisson
PLAYER DEVELOPMENT INSTRUCTORS/ROVERS
- Field/Infield Coordinator: Ryan Newman
- Pitching Coordinator: Matt Zaleski
- Assistant Pitching Coordinator: Curt Hasler
- Pitching Advisor: J.R. Perdew
- Hitting Coordinator: Alan Zinter
- Assistant Hitting Coordinator: Danny Santin
- Catching Coordinator: Julio Mosquera
- Rehab Pitching Coach: Hiram Burgos
- Biomechanist: Jason Hashimoto
- Player Development Analyst: Ethan Bain
- Player Development Analyst: Zubin Srivastava
MEDICAL STAFF
- Medical Coordinator: Kevin Pillifant
- Physical Therapy Coordinator: Evan Jurjevic
- Physical Therapist: Deanna DeNapoli
- Performance Coordinator: Sergio Rojas
- Assistant Performance Coordinator: John Perry
- Medical Administrator: Scott Takao
- Sports Psychologist: Dr. Rob Seifer
ARIZONA OPERATIONS
- Facility Manager: Joe Lachcik
- Minor League Clubhouse Manager: Dan Flood
- Assistant Minor League Clubhouse Manager: Bryant Biasotti
CLASS AAA CHARLOTTE KNIGHTS
- Manager: Sergio Santos
- Pitching Coach: Scott Aldred
- Hitting Coach: Jim Rickon
- Bench Coach: Ángel Rosario
- Trainer: Carson Wooten
- Performance Coach: George Timke
CLASS AA BIRMINGHAM BARONS
- Manager: Guillermo Quiroz
- Pitching Coach: John Kovalik
- Hitting Coach: Nicky Delmonico
- Bench Coach: Daniel Millwee
- Trainer: AJ Smith
- Performance Coach: Juan Maldonado
CLASS A WINSTON-SALEM DASH
- Manager: Pat Leyland
- Pitching Coach: Blake Hickman
- Hitting Coach: Cam Seitzer
- Bench Coach: Pat Listach
- Trainer: Austin Smith
- Performance Coach: Logan Jones
CLASS A KANNAPOLIS CANNON BALLERS
- Manager: Chad Pinder
- Pitching Coach: Jacob Dorris
- Hitting Coach: Charlie Romero
- Bench Coach: Darius Day
- Trainer: Tilly DeLeon
- Performance Coach: TBA
ARIZONA COMPLEX LEAGUE WHITE SOX
- Manager: Daniel González
- Pitching Coach: Rob Hardy
- Hitting Coach: Gerardo Olivares
- Bench Coach: Mike Gellinger
- Development Coach: Tyler Coolbaugh
- Trainer: Kira Felise
- Performance Coach: Donovan Clark
DOMINICAN REPUBLIC ACADEMY | DSL WHITE SOX
- Field Coordinator: Julio Bruno
- Manager, Complex Operations: Wellington Morrobel
- Manager, Administration: Carolina Santos
- Manager: Anthony Núñez
- Pitching Coach: José Brito
- Assistant Pitching Coach: Stolmy Pimentel
- Infield Coach: Guillermo Reyes
- Hitting Coach/Catching Coach: Moisés Núñez
- Development Coach: Rigaberto Silverio
- Trainer: Gustavo De La Cruz
- Assistant Trainer: Estarlin Rosario
- Performance Coach: Fran Batista
- Assistant Performance Coach: Carlos Javier
- Video Coordinator: Miguel Pérez
- Lead Educator: Pablo Frías
- Education Assistant: Rubén Benavides
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